Olney

Census-designated place in Montgomery County, Maryland

View of Olney, Maryland
Photo: Farragutful · CC BY-SA 3.0

Olney is an unincorporated community (census-designated place) in Montgomery County, Maryland, with 35,820 residents (2020 Census). It sits at 541 ft (165 m) above sea level. The nearest town is Brookeville, 2.7 miles N.

About Olney

Olney is a census-designated place and an unincorporated area in Montgomery County, Maryland, United States. It is located in the north central part of the county, thirteen miles (21 km) north of Washington, D.C.

Olney was largely agricultural until the 1960s, when growth of Washington, D.C.'s suburbs led to its conversion into a mostly residential area. It has a total population of 35,820 as of the 2020 United States census.

Text: Wikipedia · CC BY-SA 4.0

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Living in Olney

Median household income
$171,458
Median home value
$656,600
Median rent
$2,404/mo
Median age
41.6
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Map of Olney

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Olney, MD population

Olney had 35,820 residents in the 2020 Census.

2020 Census35,820
Density2,214 per sq mi (855 per km²)

Source: U.S. Census Bureau, Decennial Census.

Olney at a glance

StateMaryland (MD)
CountyMontgomery County
TypeCensus-designated place
Population35,820 (2020)
Land area16.18 sq mi (41.9 km²)
Water area0.04 sq mi (0.11 km²)
Elevation541 ft (165 m)
Coordinates39.1443° N, 77.0714° W
ZIP codes20832, 20853, 20860
Official websiteolneymd.org
Census code (GEOID)2458900

Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.

Towns near Olney

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Frequently asked questions about Olney

What county is Olney in?

Olney is in Montgomery County, Maryland.

What is the population of Olney, MD?

35,820 people lived in Olney at the 2020 Census.

What is the ZIP code of Olney, MD?

The main ZIP code is 20832. Other ZIP codes: 20853, 20860.

What is the elevation of Olney?

541 feet (165 m) above sea level.

What towns are near Olney?

Brookeville (2.7 mi), Leisure World (2.8 mi), Aspen Hill (3.6 mi), Ashton-Sandy Spring (3.9 mi), Redland (4.0 mi).

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